The U.N. backed tribunal for the Khmer Rouge included war crimes on the indictment for the notorious prison leader, Kaing Guek Eav, or “Duch.”
Duch, who faces charges for crimes against humanity, had war crimes added to his list of charges stemming from atrocities during the reign of the regime from 1975 to 1979.
Five senior members of the Khmer Rouge were arrested in 2007 and charged with a variety of atrocities, including war crimes and crimes against humanity. It's estimated than nearly 2 million people died in a quasi-eugenics campaign backed by the Khmer Regime to form an ultra-communist agrarian utopia through forced labor camps.
Duch, a former math teacher, led the notorious Tuol Sleng prison, or S-21, where more than 14,000 people were tortured under his strict authority.
His trial is expected to begin in September.